0. Gold doesn't corrode/oxydize/otherwise react easily with most common elements, thus keeping it properties over extremely long periods of time.
I doubt they knew or cared about 2). They did care about 1) being malleable and therefore easy to turn into pretty objects. They also cared that 3) it was shiny. But the main selling point was the fact that those pretty, shiny things lasted and could even be passed to the next generation ;)
Yep. I originally included that and erased it for some reason.
You are probably right about 2 as well, the reasons I like to think they might have been aware: 1.) there were Amphora made of both silver and gold; and 2.) they recognized the antimicrobial properties of other things (example: honey on wounds to avoid infection).
Obviously the Amphora could simply be chalked up to displays of wealth, but I would think they observed the delay in food/beverage degradation in those Amphora compared to standard clay. I guess the funny thing with gold is even today we don't have broad industrial usage (probably good because of the limited supply), though I I suppose trace amounts are used in some modern electronics.
0. Gold doesn't corrode/oxydize/otherwise react easily with most common elements, thus keeping it properties over extremely long periods of time.
I doubt they knew or cared about 2). They did care about 1) being malleable and therefore easy to turn into pretty objects. They also cared that 3) it was shiny. But the main selling point was the fact that those pretty, shiny things lasted and could even be passed to the next generation ;)